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SCD Bio Ag - Microbial Inoculant and Soil Amendment - SCD Probiotics


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California residents, please order SCD Bio Ag Microbial Additive for Farms and Gardens

Bio-boost your soil and plant health with OMRI-Listed soil amendment SCD Bio Ag, a patented blend of beneficial microbes plus their bio-fermented metabolites. Introducing this powerful blend to your soil populates plants’ root zones with microorganisms and their bioactive compounds which together convert nutrients into more plant-available forms. The result is healthier, more productive soil that actively supports your plants’ health and success.

  • Unlocks phosphorus, a key plant nutrient
  • Increases plant resiliency
  • Builds long-term soil quality
  • Supports larger, stronger roots
  • OMRI-Listed for Organic Use

For International Shipping and/or Bulk Orders, Contact

Size: 1 Liter

  • 1 Liter
  • 1 Gallon
  • 5 Gallon
Out of stock
SKU: A192N/A

This soil amendment is a ready-to-use concentrate. Mix only as much as is directed in the Usage Guides for each application. For best results, each dilution should be used within 30 days.

  • Soil Inoculant: 5-30 gal. per acre (4.080 yd2). Apply as a spray or add into irrigation water at a ratio of 1:1000. Apply 2-3 weeks before planting for pre-treatment.
  • Foliar Spray: ¾ - 1.5 tsp. per 1 gal. water. Apply twice per month. For large-scale operations, apply a total of up to 50 gallons per acre per year.veggies, flowers, trees, etc.
  • Post-Harvest: 2.5 Tbsp. per 1 gal. water. Spray directly onto produce 48 hours before harvest, and then spray storage area.
Store at room temperature and out of direct sunlight. Do not use if pH is greater than 3.9.

For more instruction, download our Usage Guide.

SCD Bio Ag contains a powerful community of Lactic Acid Bacteria, Bacillus spp., Purple Non-Sulfur Bacteria, and Yeast. Unlike most companies, we use patented fermentation technology to grow compatible species of beneficial microbes together, carefully selecting for and enhancing microbial active functions. Using this patented method, our microbes form a unique synergistic community that is more effective together, as a system, than singularly-grown microorganisms.


Purified Water

Proprietary Lactic Acid Cultures

Organic Sugar Cane Molasses

Rice Bran Liquid Extract

Mineral Powder and Sea Salt

Customer Reviews

Based on 19 reviews
Great for Raised Bed Gardening

This is the third year using Bio Ag on the raised beds both as a soil drench and a foliar spray, and the results have been much better than expected. As the plant health has improved from the increased microbial activity, both the quantity and quality of the harvested vegetables has improved. I mix the Bio Ag with molasses and fish emulsion to spray on the plants as well as drenching the soil every two weeks, and it has virtually eliminated insect pests and the milky spore disease. This company also provides great customer care.


SCD Bio Ag - Microbial Inoculant and Soil Amendment - SCD Probiotics



SCD Bio Ag - Microbial

Great stuff,

We are glad our SCD Bio Ag is working for you, Richard. Thanks for your feedback!

Many years of use

I have used SCD BioAg for many years, usually as a nutritional supplement which I may choose to ingest even though BioAg is not labeled for human consumption. I have also brewed a lot of secondary low pH and high pH fermented products high in Lactic Acid Bacteria and Purple Non-Sulphur Bacteria similar to SCD's probiotic products, using SCD mother cultures as the inoculant. I have had some good results from these products for agricultural use, and I know of a few people who have claimed health benefits for themselves by the use of these products for nutritional purpposes. However, I am unconvinced at this time that these products, though I believe they are high quality and exactly what SCD claims they are, have had a beneficial effect on my health over time, and I am skeptical of the infatuation that has developed in the nutritional supplement and alternative medicine culture of America over the past 20 years or so with Lactic Acid Bacteria and with lactate. I think there are believable reasons to at least conscientiously question the benefits of intentional consumption of Lactic Acid Bacteria supplements, and of fermented foods/supplements high in lactate, for humans.

Understanding the soil food web can help build healthy, resilient soil that’s full of life and nutrition—and even helps sequester carbon from the air. As organisms decompose complex materials or consume other organisms, nutrients are converted from one form to another and made available to plants and other organisms who make soil their home. All plants—grass, trees, shrubs, flowers, and agricultural crops—depend on the food web for their nutrition. SCD Bio Ag is a microbial soil amendment teeming with beneficial microbes that can play a role in decomposing the organic matter in your soil, helping your plants get more nutrition and thrive.

Certificate of Analysis and Safety Data Sheets available upon request.
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Please contact if you have questions about products and/or deliveries.

Shipping & Handling and Return Policies
We want you to be satisfied with every purchase you make with us. If you are dissatisfied with a product you ordered from us, we will exchange it or credit your account (excluding shipping charges) within 30 days of purchase. After 30 days you will have to pay for the replacement part and shipping. If you want us to refund your money, there is 20% restocking fee and you will be responsible for the shipping charges.

SCD Probiotics Mother Cultures™, All Seasons Indoor Composter® Kit products, SCD Herbal Probiotics®, SCD Essential Probiotics®, Xtra Immunity®, SCD Bio Ag®, SCD Bio Klean™, SCD SCD ScentGuard™, and SCD Bio LIvestock® products must be unopened.

Multiple Ship-to's:
For multiple shipping addresses, a separate shipping and handling charge will be charged based on the products ordered and the shipping addresses.

Shipping & Rates
Domestic Ground shipping is only available within the 48 continental states. Please allow 5-7 business days (excluding weekends and holidays) for Standard delivery within the 48 neighboring states. The rates for AK, HI, U.S. Territories, U.S. military installations, and Canada may be different. In effect, shipping rates will vary. SCD Probiotics® uses two different shipping carriers: USPS and FedEx. As such, you may select the delivery option that best suits your needs. SCD Probiotics may use alternate ground shipping methods for bulk items. If you have questions, please contact us at (913) 541-9299.

Delivery to international addresses is available. Shipping and handling charges for international orders will be calculated by one of our customer service representatives during our pre-specified business hours.

Free Shipping Over $50
SCD Probiotics offers free ground shipping in the continental United States on any order over $50 placed on Free shipping will automatically apply to qualifying orders; no code required. Free shipping does not apply to expedited shipping, including Overnight. Customers who wish to choose another shipping method may select that method at checkout and pay the provided amount. Alaska, Hawaii, and all International orders do not qualify for free shipping.
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SCD Bio Ag - Microbial Inoculant and Soil Amendment - SCD Probiotics

1 Liter
1 Liter